Stove.



W. E. PERRYCLEAR.

STOVE.

APPLICATION FILED FEB. 21, I917. Lga gfimu Patenteds ept. 11,1917.

3 SHEETS-SHEET 1.

W-. E. PERRYCLEARJ STOVE. 1 28m APPLICATION man 8.21.1917.

Patented Sept. 11,1917.

3 SHEETS-SHEET 2.

W. E. PERRYCLEAR.

STOVE.

APFLICATION FILED FEB. 21. 1911.

Patented Sept. 11, 1917;

. unrrnn srarns PATENTFF1E WILLIAM EATON PERRYCLEAR, OF SAVANNAH,GEORGIA, ASSIGNOR 0F ONE-HALF r0 LUTHER WILSON HIGH, or WILSON, nonrnCAROLINA.

srovn.

Specification of Letters Patent. Patented Sept. ill, 191% Applicationfiled February 21, 1917. Serial No. 149,986.

To all whom it may concern:

Be it known that I, WILLIAM E. PERRY- CLEAR, a citizen of the UnitedStates, residingat Savannah, in the county of Chatham and State ofGeorgia, have invented certain new and useful Improvements in Stoves andI do hereby declare the. following to be a full, clear, and exactdescription of the invention, such as will enable others skilled in theart to which it appertains to make and use the same.

This invention relates to stoves and furnaces, and more particularly toimprovements in certain novel constructions and arrangements of the ashdumping mechanism, ash pan raisin and lowering mechanism, the grateshaking mechanism and of the other related parts.

The objects of my invention are to provide a combined grate shaker anddraft device whereby as the furnace is shaken a draft therethrough isproduced; to provide a draft regulation whereby the draft may be set toany degree or shut off entirely; to provide means for raising andlowering the ash pan; to provide an improved ash-pit and ash-can closurewhich will prevent the escape of ash-dust during the dischargingoperation; and to provide common operating means to'open and close theash-pit and ash-can doors and to raise and lower the ash pan whereby thesame may be emptied; to provide means to lock the ash pan support whilethe doors are being operated; to provide means to close the ash-pit doorbefore the pan is lowered, and to provide means to lock the pan supportuntil the doors are in closed position.

While the invention is illustrated and described in connection with astationary furnace of the usual size it may also be embodied in acomposite light, inexpensive. and convenient heating apparatus, whichshall be adapted for use in the several .rooms of a house and which byreason of its lightness may be carried from room to room and set up inany convenient spot.

A further objectof {my invention is to produce an ash dumpingmechanism,formed within the stove itself so thatthe ashes may be collected in asuitable receptacle and removed when necessary without producing theash-dust usually resulting from the re moval of ashes. H

The "invention further consistsin the ar rangements and combinations ofparts thereof, all substantially as will be hereinafter set forth andfinally embraced in the accompanying claims.

In the accompanying drawings,

Figure 1 is a sectional elevation of the improved furnace;

Figs. 2 and 3 are sections of the grate and ash pan closing mechanism;

Figs. 4 and 5 are sections taken on lines H and 5-5 of Fig. 1;

Fig.6 is a section on line 6-6 of Fig. 1 looking down from the topthereof;

Fig. 7. is a detailed section of the rack operating pinion and the locktherefor;

Fig. 8 is a side view of the locking mechanism;

Fig. .9 is an elevation of the rack bars and ash pan'support; and

Fig. 10 is a detail of the shaft lock.

. Inthe improved furnace immediately below the firebox 1 is located thegrate-chamber 2, the walls thereof being provided with an annular seriesof draft or ventilation openings 3, and below these openings the wallsare tapered inwardly, as at 4, to form a rectangular ash-outlet 5.Fitting tightly within said grate-chamber is an annular draftregistering in certain positions with the openings 3 in the gratechamber walls. Thedraft valve is provided at any convenient point withgrate supporting means, shown in this instance as integral arms 8terminating in a central hub 9, which forms a bearing for theoscillatable grate member 10, provided with a hand lever 11 for operating the same.

Immediately beneath the ash-exit 5 the interior walls of the furnace arecontinued to form depending flanges 12 and 13, the flange on one sidebeing omitted to provide an opening for the sliding closure mechanism.The flange on the opposite side is provided with an opening 14 for theshaft 15. At the junction of the tapered grate walls t and the flanges12 and 13, and preferably formed directly in the walls of the furnace,are the sliding door grooves 16. Extending transversely of the furnaceand adapted to pass through opening 14 in the flange 12 is the shaft 15,the same being provided intermediate its ends with a worm 17 and at itsopposite ends with the pinionsl8 and the locking members 19, there beingduplicate sets on each end of the shaft, as shown in 3O placing'the ashpan in place. This ash pan the drawings. These locking members areprovided with teeth adapted to engage the rack teeth and hold the samefrom movement. Obviously other locking devices may be used;

Pivoted in the flange 12 and passing through the slot of-the outer canflange, is a latch device 42, comprising a bifurcated locking head 43,and areleasing end 44, adapted to be projected into the path ofinnermost movement of the sleeve 31, and to be depressed thereby. Thelocking head of the'latch is weighted or spring pressed in normallocking position but when the doors are closed the sleeve contactingwith the releasing end of the latch, turns the same on itspivot andreleases the shaft for endwise movement.

Arranged on opposite sides of the furnace and formed in the outer wallsthereof are the rack slides adapted to provide vertical guides for themovement of the ash pan racks 21. As illustrated in Fig. 9, these racksterminate in a pan seat 22, comprising preferably integral cross arms28, and a back piece 24:, on which the ash pan 25 is adapted to'restj Asshown in Fig. 9, the back rib 24,- is squared at its median part toreceive a correspondingly shaped part of the can so that no confusioncanarise in re terminates at its top in a neck section which is arranged tointerfit with the flanges 12 and 13 of the ash-pit, and the neck sectioncomprises the side flanges 26, the rear flange 27 formed with the shaftslot 28, and the front flanges 29, which, as shown in Fig. 5, are'cutaway to provide movement for the door. Interiorly the base ofthe neckportion of the ash pan is provided with grooves 30, corresponding tothose in the flanges of the ash-pit. The'flanges are cut away at thefront so that the grooves pass entirely through the walls of both thepan and the furnace.

Surrounding the worm 17 and interiorly threaded to engage the same isthe sleeve 31 provided on its upper side with the ash-pit door orclosure 32, which is adapted to move laterally with the worm. Beneath,the sleeve is provided with projecting female lugs adapted to receivecorrespondingmale lugs on the lower ash pan door or closure 33. As isevident from Fig. 1, of the drawing, in normal closed position thesleeve is slightly out of'engageme'nt with the worm but is adapted 'tobe brought into mesh therewith by apreliminary lateral thrust justenough to engage the threads. It will be seen that the flanges 26, 27and the interfitting flanges 29 and34 form an ash-tight connectionbetween the ash-pit and the ashcan while the ashes are discharging fromthe former into the latter.

On the front end of the shaft'j15 is arranged the conical guide member36, adaptedto act as a guide for the sleeve in its eX- tremeopenpositionpn the shaft, and to guide the sleeve partlyonthe pinion 18when the door is fully open.

-.As shown in Fig. 7, the pinions 18 are .adapted to be secured to theshaft 15,while the locking members 19 are revoluble relatively thereto.

In operation, oscillation of the lever 11 shakes the grate to permit theashes to drop below into the ash-pit, at the same time permitting adraft to pass from the openings, throughthe rating by the'alternateopening' and closing of the draft valve. Fu'rther more, any degreeo-f'draft may be produced by opening moreor less these draft holes or,if desired, thelever may be moved to such a position that they areentirely'closed and all draft .therethrough cut oil; ,Tlie combineddraft and grate shaking members act the same. as when using a poker inthat the draft assists in cleaning the "coals of'all ashes, that is, asthegrateis shaken the draft of air passing therethrough willmaterially'assist in removing the ashes from the coals. At the same timethe draft of 'air will force the ash dustup into the combus- I tionchamber, thus preventing "its escape into the lower compartment of thestove.

In addition, the structure presents a much more convenientarrangement ofgrate and draft devices. There is a great saving of materialaccomplished; it is moreeasily operated because of the one lever; and isless expensive to make.

When it is desired to dump the ashes, the shaft 15 is given aslightlateral thrust to engage the threads of the sleeve, whereupon the shaftis rotated by the lever 10, and the doors slid to open position shown inFig. 2 As the doors open, the shaft latch 40 is lowered so that theweighted or spring pressed end engages th'e'notch in the shaft and locksit from lateral movement, and

this shaft remains locked until the doors are reclosed, which operationreleases the latch. After the ashes are dumped, the shaft 15 isreversely rotated and the doors closed, the sleeve again moving out ofengagement with theworm 17, the shaft being unlocked. It will be noticedthat. during the entire ash dumping operation the dust therefrom will beconfined, and furthermore that the ash pan is locked from movement byreason of the engagement of the teeth of the locking block 19 with therack 21. i

If it now be desired to lower the ash pan, the shaft 15 ispulledlaterally, which disengages thelock member 19 from the rack andslides it into the offset hub 41, Fig. 7, at thesametime the pinioncomes into mesh with the rack, whence a reverse rotation of the shaft 15lowers the racks and the ash pan to dumping position. The pan is broughtback to ash receiving position by the reverse rotation of the shaft andheld by a lateral thrust of the shaft to locking position.

I do not wish to be confined to the particular mechanism employed forcarrying out this invention, as it is susceptible of variousmodifications without departing from the scope of the claims.

Having thus described my invention, what I claim as new and desire tosecure by Letters Patent of the United States is:

1. In combination with a furnace provided with draft openings in thewalls thereof, a movable grate located above said openings, andinter-connected means to move said grate and control said draftopenings.

2. In a furnace, a grate therefor; said furnace being provided withdraft openings below said grate, and a single lever to simultaneouslyoscillate said grate and to open and close said draft openings.

3. A draft device for a furnace compris .ing a grate, an annular membermovable therewith and provided with openings therein adapted tocooperate with the draft openings in the wall of the furnace, and meansto move said grate and annular member.

4. In combination with the ash-pit of a furnace, an ash pan adapted tobe placed in ash-receiving position, a closure for said ash pan, andinter-connected means to open and close the ash pan closure and raiseand lower the ash pan.

5. In combination with the ash-pit of a heating device, a closuretherefor, closure operating means, an ash pan adapted to be held inash-receiving position, means to lower the same, and means to lock thelowering means while the closure means is opcrating.

6. A heating device, including an ash-pit, a closure therefor, closureoperating means, an ash pan, means to raise and lower the same to andfrom the ash-pit, and means to lock the raising and lowering means whilethe closure means is operating and to close the ash-pit door before thepan is lowered or raised.

7. A heating device, including an ash-pit, a closure therefor, an ashpan, means to raise and lower the same, including means to prevent theclosure from being opened When the ash pan is moved.

Copies of this patent may be obtained for five cents each, by addressingthe 8. In a furnace, a grate, a draft annulus connected thereto and amember provided with draft openings adapted to register with similaropenings in the furnace wall,

a single lever connected to said grate and annulus to oscillate thesame.

9. In a furnace provided with an ash exit, ash receiving means adaptedto communicate with said exit, a closure for said exit and ash receivingmeans, and means to simultaneously open and close both exits.

10. In a furnace provided with an ash exit, an ash pan, a shaft, a wormthereon, a sleeve surrounding said worm, a slide connected to saidsleeve and movable thereby to open and close said exit.

11. In a furnace provided with an ash exit, a sliding closure for saidexit, a movable carriage therefor adapted to hold a pan, a rackconnected to said carriage, a

shaft, a worm thereon to engage said sliding closure, said shaft alsohaving a pinion and lock thereon to engage said rack, and means torotate and longitudinally slide said shaft to operate either thecarriage or the closure.

12. In a furnace provided with an ash exit, a closure therefor, acarriage adapted to support an ash pan, elevating means connected tosaid carriage, a shaft, means thereon for operating said closure, meanson said shaft for elevating said carriage, means on said shaft forlocking said carriage, and means for either operating said closure orsaid carriage, and means for locking one upon the operation of theother.

13. In a furnace provided with an ash exit, a pan, a closure for saidash exit and interconnected means for moving said pan to and from ashreceiving position and for opening and closing the ash exit, and meansto lock the pan from movement until the ash exit is closed.

14. In a furnace provided with an ash exit, a pan, a closure for saidexit and means for moving said pan to and from ash receiving positionand for opening and closing said ash exit, including means to close theash exit before the pan can be lowered.

In testimony whereof I aflix my signature in the presence of twowitnesses.

WILLIAM EATON PERRYGLEAR.

Witnesses:

LUTHER W. HIGH, J. BALLARD MOORE.

Commissioner of Patents,

Washington, D. G.

